Weldable strain gauges

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=New equipment ....... ............... . up to three independent real-time 256 grey level image digitizers, with software-setectable image formats of 512 x 512 or 256 x 256. The digitizers accept and transmit CCIR or RS170 composite video signals with RGB pseudo-colour output possible from 3 x 256 × 6 bit look up tables. The hardware is environmentally protected to IP54 in a standard 19" rack-mounted housing. With the comprehensive set of industrial I/O facilities, digital I/0, serial communications (RS232, RS422) and networking, the system can be interfaced to all levels of manufacturing equipment. The Integral 125 is provided with modular tools for image processing, metrology, data logging, industrial I/0, communications, graphic interface and diagnostics. Using the tool libraries, quality tested applications can be reliably configured for the most complex inspection tasks. The Scopeman is essentially a self-contained desktop microscopy system housed in a console that can be connected to a high definition TV monitor to provide a controlled colour image of any object through the use of a self illuminating, direct viewing or side viewing fibre optic camera head. It offers a depth of field unobtainable by other forms of microscopy, which makes it attractive for close inspection work on pcb assemblies, precision engineered components, non-destructive testing, horticulture specimens and other areas of application where depth of field viewing is important. Finlay Microvision Co Ltd, Finlay House, Southfields Road, Kineton Road Industrial Estate, Southam, Warwickshire CV33 OJH, UK Boiler tube weld inspection A system for ultrasonically inspecting the weld between boiler tubes and header has been Compact ultrasonic scanner from Physical Acoustics for inspecting boilertube welds developed by Physical Acoustics. It consists of a PC with special cards and software which display cross-sections of the weld at multiple locations. The RF ultrasonic signal is stored to optical disc as a permanent record, which enables many types of signal analysis to be carried out post-test without the need to repeat the inspection. A compact scanner was also developed. The system can be expanded from a simple hand-held A-scan probe to a four-axis immersion A/B/C-scan with zoom, RF storage, statistical data analysis and probe evaluation software. Physical Acoustics Ltd, Norman Way, Over, Cambridge, CB4 5QE, UK Weldable strain gauges The Kyowa KHC range of weldable strain gauges give dependable performance in high temperature, corrosive and other difficult environments. Typical applications include static and dynamic stress measurements on aircraft, submarine, mineral refinery and civil engineering structures. The gauges are hermetically sealed in stainless steel housings, designed to operate to + 550°C, have good resistance to exposure to acid alkali solutions, and submersible sea conditions. Each gauge comprises a half bridge of Ni-Cr-V elements, 5-20 mm long, packed in MgO powder. Thermally induced apparent strain is minimized by a dummy element and special compensation resistors. Installation of the gauges by spot welding does not require special surface preparation, and is simpler and faster than conventional techniques. Graham & White Instruments Ltd, 135 Hatfield Road, St. Albans, Herts, AL 1 4LZ, UK Voltage pulse measurement The Sirec 3500 pulse recorder from Siemens is a portable recorder for measuring and recording AC and DC voltage pulses. A time-dependent Yes/No graph printed on thermosensitive paper indicates whether a voltage is present, or whether contacts are open or closed. The recorder can be used as a permanent monitor and recorder of binary signals from industrial control and automation systems, or in power installations. Siemens Infoservice, Pf, 2348, D-W 8510 Fitrth 2, Germany 54 NDT&E International Volume 25 Number 1 1992

Transcript of Weldable strain gauges

Page 1: Weldable strain gauges

= N e w e q u i p m e n t ....... ............... .

up to three independent real-time 256 grey level image digitizers, with software-setectable image formats of 512 x 512 or 256 x 256. The digitizers accept and transmit CCIR or RS170 composite video signals with RGB pseudo-colour output possible from 3 x 256 × 6 bit look up tables. The hardware is environmentally protected to IP54 in a standard 19" rack-mounted housing. With the comprehensive set of industrial I/O facilities, digital I /0, serial communications (RS232, RS422) and networking, the system can be interfaced to all levels of manufacturing equipment.

The Integral 125 is provided with modular tools for image processing, metrology, data logging, industrial I /0 , communications, graphic interface and diagnostics. Using the tool libraries, quality tested applications can be reliably configured for the most complex inspection tasks.

The Scopeman is essentially a self-contained desktop microscopy system housed in a console that can be connected to a high definition TV monitor to provide a controlled colour image of any object through the use of a self illuminating, direct viewing or side viewing fibre optic camera head. It offers a depth of field unobtainable by other forms of microscopy, which makes it attractive for close inspection work on pcb assemblies, precision engineered components, non-destructive testing, horticulture specimens and other areas of application where depth of field viewing is important.

Finlay Microvision Co Ltd, Finlay House, Southfields Road, Kineton Road Industrial Estate, Southam, Warwickshire CV33 OJH, UK

Boiler tube weld inspection A system for ultrasonically inspecting the weld between boiler tubes and header has been

Compact ultrasonic scanner from Physical Acoustics for inspecting boiler tube welds

developed by Physical Acoustics. It consists of a PC with special cards and software which display cross-sections of the weld at multiple locations.

The RF ultrasonic signal is stored to optical disc as a permanent record, which enables many types of signal analysis to be carried out post-test without the need to repeat the inspection. A compact scanner was also developed.

The system can be expanded from a simple hand-held A-scan probe to a four-axis immersion A/B/C-scan with zoom, RF storage, statistical data analysis and probe evaluation software.

Physical Acoustics Ltd, Norman Way, Over, Cambridge, CB4 5QE, UK

Weldable strain gauges The Kyowa KHC range of weldable strain gauges give dependable performance in high temperature, corrosive and other difficult environments. Typical applications include static and dynamic stress measurements on aircraft, submarine, mineral refinery and civil engineering structures.

The gauges are hermetically sealed in stainless steel housings, designed to operate to + 550°C,

have good resistance to exposure to acid alkali solutions, and submersible sea conditions. Each gauge comprises a half bridge of N i -Cr -V elements, 5 -20 mm long, packed in MgO powder. Thermally induced apparent strain is minimized by a dummy element and special compensation resistors.

Installation of the gauges by spot welding does not require special surface preparation, and is simpler and faster than conventional techniques.

Graham & White Instruments Ltd, 135 Hatfield Road, St. Albans, Herts, AL 1 4LZ, UK

Voltage pulse measurement The Sirec 3500 pulse recorder from Siemens is a portable recorder for measuring and recording AC and DC voltage pulses. A time-dependent Yes/No graph printed on thermosensitive paper indicates whether a voltage is present, or whether contacts are open or closed. The recorder can be used as a permanent monitor and recorder of binary signals from industrial control and automation systems, or in power installations.

Siemens Infoservice, Pf, 2348, D-W 8510 Fitrth 2, Germany

54 NDT&E International Volume 25 Number 1 1992